%0 Journal Article
%T Study of three-dimensional storage by parallel writing in PMMA with femtosecond laser pulses<br>用飞秒激光脉冲在PMMA内页面式写入三维光存储的研究
%A Cheng Guang-Hu
%A Wang Yi-Shan
%A Liu Qin
%A Zhao Wei
%A Chen Guo-Fu
%A <br>程光华
%A 王屹山
%A 刘　青
%A 赵　卫
%A 陈国夫
%J 物理学报
%D 2004
%I 
%X Using a microlens array to focus an amplified femtosecond laser pulse inside a bulk PMMA(polymethyl methacrylate), optical breakdown occurs at each focus of the microlenses. By changing the positions of the foci,we realize the three-dimensional optical recording of high contrast bits at a speed of 20Mbit/s (with a 1kHz fs pulse laser ) in PMMA. Accordingly, modulation and readout of binary data have been presented. The diameter, focus length,and lens aberration in the microlenses are key factors which affect the recording speed and optical capacity based on this mechanism. Two kinds of effective ways to increase the capacity are discussed in this paper.
%K three-dimensional optical data storage
%K microlens arrays
%K femtosecond laser pulse
%K PMMA<br>三维光存储
%K 微透镜阵列
%K 飞秒激光
%K PMMA
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=83C75A9DC440C267&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=0B39A22176CE99FB&sid=08076B8B3CC96095&eid=78976D931AD1540F&journal_id=1000-3290&journal_name=物理学报&referenced_num=4&reference_num=16